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# -*- coding: utf-8 -*-"""This module defines a :class:`.Registry` of objects that takes care of automaticallyupdating the search index when we detect changes to the data in adata store. The data store can be anything you like (Django ORM,MongoDB, ...) - our examples use Django ORM.This is completely decoupled from the :mod:`ievv_opensource.ievv_elasticsearch.search`API."""from__future__importunicode_literalsimportitertoolsfromdjango.confimportsettingsfromfuture.utilsimportwith_metaclassfrompyelasticsearchimportbulk_chunks,ElasticHttpNotFoundErrorfromievv_opensource.ievv_elasticsearchimportsearchfromievv_opensource.ievv_elasticsearch.documentqueryimportDocumentQueryfromievv_opensource.utils.singletonimportSingleton

[docs]classAbstractDocument(with_metaclass(AbstractDocumentMeta,object)):""" Base class for indexable documents for :class:`AbstractIndex`. """#: The document type to store this as in the index.doc_type=None#: The name of the index this document belongs to.#: This is set by :class:`.AbstractIndex` __init__ using :meth:`.set_index_name_for_all_document_classes`.index_name=Noneobjects=None

[docs]defget_document(self):""" Get document for the ``doc`` argument of :meth:`pyelasticsearch.ElasticSearch.index_op`. """raiseNotImplementedError()

[docs]defget_id(self):""" Get the ID to use for the indexed document. Defaults to ``None``, which means that a new document will be added to the index. """returnNone

[docs]defget_parent_id(self):""" Get the parent-child mapping parent ID document to use for the indexed document. This should only be overridden if you have a parent specified Defaults to ``None``, which means that no ``parent`` will be sent during indexing operations. """returnNone

[docs]@classmethoddefget_mapping_properties(cls):""" Get the mapping properties for custom mappings for this document type. You only need to specify those mappings you do not want elasticsearch to create automatically. If you do not have any mappings, return ``None`` (or do not override). Examples: Simple example:: class MyDocument(autoindex.AbstractDocument): @classmethod def get_mapping_properties(cls): return { 'slug': { 'type': 'string', 'index': 'not_analyzed' }, 'author': { 'username': { 'type': 'string', 'index': 'not_analyzed' } } } """returnNone

[docs]@classmethoddefget_mapping_parent_type(cls):""" Get the type of the parent document for parent-child mapping. Lets say you have a Movie document, and want to create a parent-child relationship from the Category document with doc_type ``category`` to the Movie. In the Movie document class, you would have to: - Override this method and return ``"category"``. - :meth:`.get_parent_id` and return the ID of the category. """returnNavy Casual Old Dress Boutique Winter q86wCxREHNone

[docs]classAbstractDictDocument(AbstractDocument):"""Wide Trouser Sport Sisley Trim Leg Extends :class:`.AbstractDocument` to make it easy to put dicts in the database. """def__init__(self,document,id):""" Parameters: document: A dict that pyelasticsearch can convert to JSON. id: The ElasticSearch id of the document. Set to ``None`` to autocreate one. """self.document=documentself.id=id

[docs]defset_index_name_for_all_document_classes(self):""" Called by __init__ to set the :obj:`.AbstractDocument.index_name` of all documents in :obj:`~.AbstractIndex.document_classes`. """fordocument_classinself.document_classes:document_class.index_name=self.name

[docs]defget_document_classes(self):""" Returns an iterable of the :class:`.AbstractDocument` classes used in this index. Defaults to :obj:`.document_classes`. """returnself.document_classes

[docs]defget_document_classes_for_mapping(self):""" Get the document classes for mapping. You normally do not have to override this - it only return :meth:`.get_document_classes` reversed. It is reversed because parent-child mappings have to be created in the child before the parent mapping can be created, but you normally want to index parents before children. """returnreversed(self.get_document_classes())

[docs]defiterate_all_documents(self):""" Iterate over all documents returning documents that are ready to be added to the index. Returns: An iterable of :class:`.AbstractDocument`. """raiseNotImplementedError()

[docs]defiterate_important_documents(self):""" Just like :meth:`.iterate_all_documents`, but just yield the most important documents in case of a complete search index wipeout/rebuild. This is typically the newest and most important documents in the database. Defaults to returning an empty list. """return[]

[docs]defregister_index_update_triggers(self):""" Override this to register behaviors that trigger updates to the index. This is typically something like this: - Register one or more post_save signals that updates the index in realtime (be very careful with this since it can easily become a bottleneck). - Register one or more post_save signals that updates the index via a Celery job or some other background queue. Does nothing by default, so it is up to you to override it if you want to register any triggers. """

[docs]@classmethoddefget_instance(cls):""" Get an instance of this class. Use this instead of instanciating the class directly. """returnRegistry.get_instance().get(cls.name)

[docs]defrebuild_index(self):""" Rebuild this index completely. Very useful when writing tests, but probably a bit less than optimal in production code/batch tasks unless you have a really small index. In production you should most likely want to create a management command to rebuild the index with the most recent/most important documents beeing indexed first. """try:self.delete_index()exceptElasticHttpNotFoundError:passself.create()self.index_items(self.Boutique Ronson Heart Winter Dress I Casual xCq1pSHqBwiterate_all_documents())

Boutique Winter amp;m Dress H Casual v0dpvrP7defget(self,indexname):""" Get the index named ``indexname``. Returns: An :class:`.AbstractIndex` or ``None`` if no index matching the given ``indexname`` is found. """returnself._indexes.get(indexname,None)

[docs]defget_indexnames(self):""" Get a view with the names of all indexes. """returnself._indexes.keys()

def__contains__(self,indexname):""" Check if an index with the given name is in the registry. """returnindexnameinself._indexes

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